Greece weather in May
In May, popular resorts in Greece (Heraklion, Chania, Rethymno, Rhodes, Kos) average 22°C by day and 18°C at night, and the sea is about 21°C. On average 22 mm of rain falls during the month.
That is 4°C warmer than in April, and in June days average 26°C.
It is warm, but often too cool for the beach, better for sightseeing. The sea is cool, swimming only for the hardy.
Warmest resorts in Greece in May
Greece weather in other months
See also
FAQ
Is it warm in Greece in May?
In May, popular resorts in Greece (Heraklion, Chania, Rethymno, Rhodes, Kos) average 22°C by day and 18°C at night, and the sea is about 21°C. On average 22 mm of rain falls during the month. It is warm, but often too cool for the beach, better for sightseeing.
What is the sea temperature in Greece in May?
About 21°C on average. The warmest water is in Heraklion (21°C).
Where is it warmest in Greece in May?
The warmest place is Kos (24°C by day), followed by Rhodes (23°C) and Heraklion (22°C).
Does it rain in Greece in May?
On average 22 mm of rain falls in the month. Rain happens, but usually in short showers.
Long-term averages from NASA POWER data (MERRA-2, 2001-2020 reanalysis, CC BY 4.0). Sea temperature is the average water surface temperature at the nearest grid point over the sea. This is climate, not a forecast for a specific day.